BLIC ""-//W3C//DTD XHTML 1.0 Transitional//EN"" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
Note: There seems to be a minor typo or truncation in your original string ("xhtml1-transitional.d"), where it should likely be "xhtml1-transitional.dtd". Make sure to use the correct and complete URL when applying this in code or documents.